Magnetoelectric effects in the skyrmion host material Cu2OSeO3

Abstract

Insulating helimagnetic Cu2OSeO3 shows sizeable magnetoelectric effects in its skyrmion phase. Using magnetization measurements, magneto-current analysis and dielectric spectroscopy, we provide a thorough investigation of magnetoelectric coupling, polarization and dielectric constants of the ordered magnetic and polar phases of single-crystalline Cu2OSeO3 in external magnetic fields up to 150 mT and at temperatures below 60 K. From these measurements we construct a detailed phase diagram. Especially, the skyrmion phase and the metamagnetic transition of helical to conical spin order are characterized in detail. Finally we address the question if there is any signature of polar order that can be switched by an external electric field, which would imply multiferroic behaviour of Cu2OSeO3.

9 pages, 5 figures

References in corpus (11)

• Spin current and magneto-electric effect in non-collinear magnets
• Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
• Long wavelength helimagnetic order and skyrmion lattice phase in Cu2OSeO3
• Spin-polarization coupling in multiferroic transition-metal oxides
• Electric field-induced Skyrmion distortion and giant lattice rotation in the magnetoelectric insulator Cu2OSeO3
• Switching the Ferroelectric Polarization by External Magnetic Fields in the Spin = 1/2 Chain Cuprate LiCuVO4
• Ferrimagnetism of the magnetoelectric compound Cu${}_2$OSeO${}_3$ probed by ${}^{77}$Se NMR
• Critical scaling in a cubic helimagnet Cu2OSeO3
• Relaxor ferroelectricity and the freezing of short-range polar order in magnetite
• Magnetoelectric effects in single crystals of the cubic ferrimagnetic helimagnet Cu2OSeO3
• Exploration of the helimagnetic and skyrmion lattice phase diagram in Cu2OSeO3 using magnetoelectric susceptibility

Cited by in corpus (23)

• Collective spin excitations of helices and magnetic skyrmions: review and perspectives of magnonics in non-centrosymmetric magnets
• New magnetic phase of the chiral skyrmion material Cu2OSeO3
• Multidomain Skyrmion Lattice State in Cu${}_2$OSeO${}_3$
• Dynamical magnetoelectric phenomena of multiferroic skyrmions
• Multiple phases with tricritical point and Lifshitz point in skyrmion host Cu${}_2$OSeO${}_3$
• Helimagnon resonances in an intrinsic chiral magnonic crystal
• Electric field-driven topological phase switching and skyrmion lattice metastability in magnetoelectric Cu${}_2$OSeO${}_3$
• Optically probing symmetry breaking in the chiral magnet Cu2OSeO3
• The magnetic and electronic properties of Oxyselenides - influence of transition metal ions and lanthanides
• Magnon-photon coupling in a non-collinear magnetic insulator Cu${}_2$OSeO${}_3$
• Magnetoelectric Cavity Magnonics in Skyrmion Crystals
• Magnetically induced Ferroelectricity in Bi${}_2$CuO${}_4$
• Recent Advances in Unconventional Ferroelectrics and Multiferroics
• Low energy magnon dynamics and magneto-optics of the skyrmionic Mott insulator Cu${}_2$OSeO${}_3$
• Tunable Cooperativity in Coupled Spin--Cavity Systems
• Antipolar transitions in GaNb${}_4$Se${}_8$ and GaTa${}_4$Se${}_8$
• Antiferromagnetic spin cantings as a driving force of ferroelectricity in multiferroic Cu2OSeO3
• Tuning the structure of Skyrmion lattice system Cu2OSeO3 under pressure
• Site-specific electronic and magnetic excitations of the skyrmion material Cu${}_2$OSeO${}_3$
• Anomalous magnetoentropic response of skrymion crystals
• Dzyaloshinskii-Moriya Interaction-Induced Magnetoelectric Coupling in a tetrahedral Molecular Spin-Frustrated System
• Magnetic field-induced chiral soliton lattice in the bulk magnetoelectric helimagnet Cu${}_2$OSeO${}_3$
• Optical, dielectric, and magnetoelectric properties of ferroelectric and antiferroelectric lacunar spinels